CVE-2020-15173
CVSS V2 High 7.5
CVSS V3 Critical 9.8
Description
In ACCEL-PPP (an implementation of PPTP/PPPoE/L2TP/SSTP), there is a buffer overflow when receiving an l2tp control packet ith an AVP which type is a string and no hidden flags, length set to less than 6. If your application is used in open networks or there are untrusted nodes in the network it is highly recommended to apply the patch. The problem was patched with commit 2324bcd5ba12cf28f47357a8f03cd41b7c04c52b As a workaround changes of commit 2324bcd5ba12cf28f47357a8f03cd41b7c04c52b can be applied to older versions.
Overview
- CVE ID
- CVE-2020-15173
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-09-09T23:15:10
- Last Modified Date
- 2021-11-18T17:48:21
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:accel-ppp:accel-ppp:*:*:*:*:*:*:*:* | 1 | OR | 1.12.0-92-g38b6104 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 7.5
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/accel-ppp/accel-ppp/security/advisories/GHSA-rr68-fchr-69vf | Third Party Advisory |
| https://github.com/accel-ppp/accel-ppp/commit/2324bcd5ba12cf28f47357a8f03cd41b7c04c52b | Patch Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-15173 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15173 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:45:50 | Added to TrackCVE | |||
| 2022-12-04 22:18:27 | 2020-09-09T23:15Z | 2020-09-09T23:15:10 | CVE Published Date | updated |
| 2022-12-04 22:18:27 | 2021-11-18T17:48:21 | CVE Modified Date | updated | |
| 2022-12-04 22:18:27 | Analyzed | Vulnerability Status | updated |